Laboratorijski postav s hardverom u petlji za sustave za upravljanje baterijskim spremnikom energije

master's thesis

• Title (english): Hardware-in-the-loop laboratory testbed for battery management systems
• Author: Kristian Tirić
• Mentor: Hrvoje Pandžić (mentor)
• Committee member: Hrvoje Pandžić (predsjednik povjerenstva)
• Committee member: Mateo Beus (član povjerenstva)
• Committee member: Juraj Havelka (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-09-08, Croatia

Abstract

Ovim radom predstavljeno je sveobuhvatno istraživanje razvoja laboratorijskog postava s hardverom u petlji za sustave za upravljanje baterijskim spremnikom energije. Laboratorijski postav uključuje model baterije kreiranog u Matlab Simulink programskog okruženju i real-time sustav Scalexio tvrtke dSPACE za simulaciju. Dodatno, koristi se programabilni logički kontroler (PLC) s implementiranim sustavom za upravljanje baterijskim spremnikom (BMS) koji se testira u simuliranoj okolini.

Eksperiment uključuje izvođenje jednog ciklusa pražnjenja baterije, a zatim jednog ciklusa punjenja, time se omogućuje procjena karakteristika i učinkovitosti BMS-a u realističnim radnim uvjetima. Ovim pristupom cilj je dobiti uvid u ponašanje baterije, pratiti njezino stanje napunjenosti te ocijeniti sposobnost BMS-a da optimizira performanse baterije.

Prikupljenim podacima tijekom simulacija kreirani su grafovi kako bi se vizualizirali naponski, strujni i stanje napunjenosti profili baterije tijekom ciklusa pražnjenja i punjenja. Ti grafovi pružaju vrijedne informacije o karakteristikama performansi baterije i učinkovitosti implementiranog BMS-a.

Analizom dobivenih rezultata i promatranjem grafova, zaključuje se sljedeće. Prvo, model baterije prikazuje ponašanje stvarne baterije, što potvrđuje blisko podudaranje između simuliranih i očekivanih valnih oblika napona i struje. Drugo, BMS implementiran korištenjem PLC-a uspješno upravlja stanjem napunjenosti baterije, osiguravajući učinkovitu upotrebu i sprječavajući prenapunjenje ili duboko pražnjenje.

Sveukupno, laboratorijski postav demonstrira učinkovitost upotrebe tehnika hardvera u petlji za simulaciju pri evaluaciji i poboljšanju sustava upravljanja baterijama. Integracija modela baterije, real-time platforme za simulaciju i PLC-a kao BMS-a omogućuje realistično i kontrolirano okruženje za sveobuhvatno testiranje i optimizaciju strategija BMS-a.

Abstract (english)

In this paper, we present a comprehensive study on the development of a hardware-in-the-loop laboratory testbed for battery management systems (BMS). The testbed incorporates a battery model implemented in Matlab Simulink and utilizes the real-time system Scalexio from dSPACE for simulation. Additionally, we employ a programmable logic controller (PLC) to function as a BMS within the simulation environment.

Experimental setup involves conducting a single cycle of battery discharge and a subsequent cycle of charging, enabling us to evaluate the performance and effectiveness of the BMS under realistic operating conditions. Through this approach, we aim to gain insights into the battery's behavior, monitor its state of charge, and assess the BMS's ability to optimize battery performance.

We collected data during the simulation runs and generated graphs to visualize the battery's voltage, current, and state of charge profiles throughout the discharge and charge cycles. These graphs provide valuable information about the battery's performance characteristics and the effectiveness of the employed BMS.

The analysis of the obtained results and graph observations allows us to draw several conclusions. Firstly, the battery model represents the behavior of a real battery, as evidenced by the close match between the simulated and expected voltage and current waveforms. Secondly, the BMS implemented using the PLC successfully manages the battery's state of charge, ensuring efficient utilization and preventing overcharging or deep discharge.

Overall, our testbed demonstrates the effectiveness of utilizing hardware-in-the-loop simulation techniques for evaluating and refining battery management systems. The integration of the battery model, real-time simulation platform, and PLC-based BMS enables a realistic and controlled environment for comprehensive testing and optimization of BMS strategies.

• Keywords: hardver u petlji; baterijski spremnik električne energije; programabilni logički kontroler; sustav upravljanja baterijskim spremnikom; UDP; stanje napunjenosti baterije; real-time računalo
• Keywords (english): hardware in the loop; battery energy storage system; programmable logic controller; battery management system; UDP; state of charge; real-time system
• Language: croatian
• URN:NBN: urn:nbn:hr:168:877196
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-10-11 10:45:56